Precautions for use of stainless steel submersible pump

Stainless steel submersible pump is small and light, plays an important role in rural production and life, in use should pay attention to the following points.
First, the purchase of stainless steel submersible pumps should pay attention to its model, flow and head. Such as the selection of the specifications inappropriate, will not be able to get enough water, can not play the efficiency of the unit. In addition, should also find out the direction of rotation of the motor, some types of submersible pumps are forward and reverse when the water can be, but reverse the small amount of water, current, and its reverse will damage the motor windings. To prevent submersible pump leakage in the water caused by electric shock accident, should be installed leakage protection switch.
Second, the installation of stainless steel submersible pump, the cable to overhead, the power cord should not be too long. Do not force the unit into the water, so as not to cause the power cord breakage. Do not sink submerged in the mud, otherwise it will lead to poor heat and burn the motor winding.
Third, try to avoid low-voltage boot. If the voltage is too high, it will cause the motor to overheat and burn out the winding. If the voltage is too low, the motor speed will decrease. If it does not reach 70% of the rated speed, the centrifugal switch will close, causing the start winding Long-term power and heat or even burn out the winding and capacitors. Do not frequently switch the motor, this is because the pump will produce a return flow stalled, if the immediate start, the motor load will start, resulting in starting current is too large and burn out the winding.
Fourth, do not let the pump long-term overload operation, do not smoke large amount of water, dehydration pump running time should not be too long, so as to avoid overheating and burned the motor. During operation, the operator must observe whether the operating voltage and current are within the value specified on the nameplate. If not, the operator should stop the motor, find the cause and rectify the fault.
5, usually more than check the motor, if found under the cover of a crack, rubber seal ring damage or failure, should be replaced or repaired in order to prevent water penetration into the machine.